Electrical high and low water alarm



(No Model.)

D. H. STREEPER.

ELECTRICAL HIGH OR LOW WATER ALARM. No. 411,230. Patented Sept. 1'7, 1889.

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ATTORNEYS.

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UNITED STATES PATENT OFFICE.

DANIEL H. STREEPER, OF NORRISTOYVN, PENNSYLVANIA.

ELECTRICAL HIGH AND LOW WATER ALA RM.

SPECIFICATION forming part of Letters Patent No. 411,230, dated September 17, 1889.

Application filed July 22, 1889. Serial No. 318,316. (No model.)

To aZZ whom it may concern:

Be it known that I, DANIEL I-I. STREEPER, of Norristown, in the county of Montgomery and State of Pennsylvania, have invented a new and Improved Electrical High and Low \Vater Alarm, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in Which- Figure 1 is a vertical transverse section of my improved electrical high and low water alarm. Fig. 2 is a vertical transverse section of a modified form of the same, and Fig. is a detail view of a portion of the mechanism shown in Fig. 2.

Similar letters of reference indicate corresponding parts in all the views.

The object of my invention is to construct a simple and effective device for attachment to steam-boilers and water-tanks, and for other similar applications for giving an alarm when the water or otherfluid in the tank falls below or rises above the prescribed limit.

My invention consists in the combination, with a suitable containing-vessel connected with a tank or boiler, of a pair of levers connected together by rods which carry floats, one at the lower partof the containing-vessel and the other at the upper part, the floats being arranged diagonallyopposite each other, so that one opposes the other.

The invent-ion also consists in the combination, with the levers and floats, of electrical contact making and breaking devices, and an electric-alarm bell, all as will be hereinafter more fully described.

In the present case I will describe my improvement as applied to a steam-boiler, but I do not limit or confine myself to this particular application.

The containing-vessel A is connected with the boiler below the water-line by the pipe a and above the water-line by the pipe b, so that there is free communication with the boiler, which permits the water to stand at the same level in the containing-vessel and in the boiler. To the cap a of the containing-vessel A is attached an arm (Z, which extends downwardly, and to which are pivoted the le vers e f. To the said levers e f, at one side of the arm (Z, is pivoted a rod g, carrying at its upper end a float h, and to the opposite ends of the said levers is pivoted a rod 13, carrying at its lower end the float j. The rod g is prolonged above the float and extends through a short section of tube k, screwed into the cap 0, the said tube being made of electrically-insulating material, and to the upper end of the said tube is clamped a cap I by means of the internally-i211readed cap on. A wire n is connected with the contactrpoint o, projecting through the cap Z in the path of the prolongation 1) of the rod g. A wire q is received in the binding-post '2', attached to the cap c, and extends to one of the binding-posts of the alarm-bell B. The other binding-post of the alarm-bell is connected by a wire s with one pole of the battery C, and the remaining pole of the battery is connected with the wire a.

\Vhen the water is at its normal level in the boiler and in the containing-vessel A, the buoyant force of the float j and the weight of the float 7L acting together carry the prolongation 19 downward and keep the electric cireuit open; but when the water recedes below the float j the said float j, being heavier than the float h, causes the levers e f to tilt, and carries the prolongation 1) upward into contact with the point 0, thereby completing the electric circuit and giving not-ice byineans of the bell B that the level of the water has changed. The attendant, by looking at the water-gage D, can tell at once whether the water is too low or too high. hen the water rises above the float h, the buoyancy of this float carries up the prolongation p and closes the electric circuit between the said prolongation and the contact-point 0, again giving the alarm, and the attendant, by glancing at the water-gage, will at once know that the water is too high.

In the modification shown in Figs. 2 and 3 the levers e f are fulcrumed in slotted cones connected by a section of gas-pipe, the upper cone being attached to the top of the cap 0. In this case the prolongation p is dispensed with, and the lever e is made to form a contact with the screw t, passing through an insulationin the cap 0.

Having thus described my invention, I claim 5 as new and desire to secure byLetters Patent- In an electrical high and low water alarm,

the combination, with the containing-vessel connected at the top and bottom with the main reservoir or boiler, of two levers e f,rods g 1 connecting the said levers, floats hj, carried 10 by the rods and arranged diagonally opposite each other, and the electrical connections, substantially as specified.

DANIEL H.-STREEPER. Witnesses:

JOHN J. CoRsoN, CHAS. W. WAINWRIGHT. 

